/* ============================================================
   MediaPulse Design System v2 — AI GEO Growth Platform
   Style: OpenAI / Vercel / Linear / Stripe — minimal, glass, blue-purple
   ============================================================ */
:root {
  /* Brand */
  --primary: #4F6BFF;
  --secondary: #6E7CFF;
  --bg: #F8FAFD;
  --dark: #050816;
  --card: #FFFFFF;

  /* Text */
  --ink: #050816;
  --ink-2: #1a1f3a;
  --muted: #5b6478;
  --muted-2: #9aa3b8;
  --on-dark: #f8fafd;
  --on-dark-muted: rgba(248, 250, 253, 0.66);

  /* Surfaces */
  --radius-card: 20px;
  --radius-sm: 12px;
  --shadow-card: 0 12px 50px rgba(0, 0, 0, 0.08);
  --shadow-lift: 0 24px 70px rgba(79, 107, 255, 0.16);
  --line: rgba(0, 0, 0, 0.06);
  --border-card: 1px solid rgba(0, 0, 0, 0.06);

  /* Glass */
  --glass-bg: rgba(255, 255, 255, 0.62);
  --glass-bg-dark: rgba(255, 255, 255, 0.07);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-blur: 24px;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #4F6BFF 0%, #6E7CFF 100%);
  --grad-dark: linear-gradient(168deg, #050816 0%, #0a1030 52%, #10173d 100%);
  --grad-text: linear-gradient(100deg, #4F6BFF 0%, #8b7bff 100%);

  /* Layout */
  --canvas: 1440px;
  --container: 1280px;
  --grid-gap: 24px;
  --section-y: 120px;
  --block-y: 96px;

  /* Nav */
  --nav-h: 72px;

  /* Buttons */
  --btn-h: 46px;
  --btn-radius: 12px;

  /* Spacing */
  --space-8: 8px;
  --space-16: 16px;
  --space-24: 24px;
  --space-32: 32px;
  --space-48: 48px;
  --space-64: 64px;
  --space-96: 96px;

  --font: "Inter", "HarmonyOS Sans SC", "HarmonyOS Sans", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-weight: 400;
  color: var(--ink);
  background: var(--bg);
  -webkit-text-size-adjust: 100%;
  line-height: 1.6;
  padding-top: var(--nav-h);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.03em; }

.container {
  width: min(var(--container), calc(100% - 2 * var(--space-24)));
  margin-inline: auto;
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--grid-gap);
}

.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

.section { padding-block: var(--section-y); }

/* Section headers */
.sec-head { text-align: center; max-width: 780px; margin: 0 auto var(--space-64); }
.sec-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 var(--space-16);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(79, 107, 255, 0.08);
  border: 1px solid rgba(79, 107, 255, 0.16);
}
.sec-title {
  margin: 0 0 var(--space-16);
  font-size: clamp(30px, 3.8vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.04em;
}
.sec-sub {
  margin: 0;
  font-size: 17px;
  line-height: 1.7;
  color: var(--muted);
}

/* ===== Nav ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}
.site-header.is-scrolled {
  box-shadow: 0 8px 40px rgba(5, 8, 22, 0.07);
  border-bottom-color: var(--line);
}
.site-header .container { height: 100%; }

.site-nav { height: 100%; display: flex; align-items: center; gap: var(--space-24); }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
  flex-shrink: 0;
}
.brand-dot {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--grad-primary);
  position: relative;
  flex-shrink: 0;
}
.brand-dot::after {
  content: "";
  position: absolute; inset: 7px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.9);
}

.nav-links {
  display: flex; align-items: center; gap: var(--space-24);
  flex: 1; min-width: 0;
  font-size: 14px; font-weight: 500;
  color: var(--muted);
}
.nav-links a { white-space: nowrap; transition: color 0.2s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); }

.nav-actions { display: flex; align-items: center; gap: var(--space-16); margin-left: auto; flex-shrink: 0; }
.nav-login { font-size: 14px; font-weight: 600; color: var(--muted); transition: color 0.2s ease; }
.nav-login:hover { color: var(--ink); }

/* ===== Language switcher ===== */
.lang-switch {
  position: relative;
  flex-shrink: 0;
}
.lang-switch-btn {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  cursor: pointer;
  user-select: none;
}
.lang-switch-btn::-webkit-details-marker { display: none; }
.lang-switch-btn svg { opacity: 0.55; }
.lang-switch[open] .lang-switch-btn {
  border-color: rgba(79, 107, 255, 0.35);
  color: var(--ink);
}
.lang-switch-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 132px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.98);
  border: var(--border-card);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 80;
}
.lang-switch-menu button {
  appearance: none;
  border: 0;
  background: transparent;
  text-align: left;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  cursor: pointer;
}
.lang-switch-menu button:hover { background: rgba(79, 107, 255, 0.06); color: var(--primary); }
.lang-switch-menu button.is-active {
  background: rgba(79, 107, 255, 0.1);
  color: var(--primary);
}
.mobile-lang {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
.mobile-lang .lang-switch { width: 100%; }
.mobile-lang .lang-switch-btn { width: 100%; justify-content: space-between; border-radius: 10px; }
.mobile-lang .lang-switch-menu { left: 0; right: 0; min-width: 0; }

.nav-menu { display: none; position: relative; }
.nav-toggle {
  list-style: none;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  cursor: pointer; background: #fff;
}
.nav-toggle::-webkit-details-marker { display: none; }
.nav-toggle::before {
  content: "";
  width: 16px; height: 2px;
  background: currentColor;
  box-shadow: 0 -5px 0 currentColor, 0 5px 0 currentColor;
}
.mobile-nav {
  position: absolute;
  top: calc(100% + 8px); right: 0;
  width: min(300px, calc(100vw - 32px));
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: var(--border-card);
  border-radius: var(--radius-card);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column; gap: 2px;
}
.mobile-nav a {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500;
  color: var(--ink-2);
}
.mobile-nav a:hover { background: rgba(79, 107, 255, 0.06); color: var(--primary); }
.mobile-nav .btn-primary { margin-top: var(--space-8); color: #fff; }

/* ===== Buttons ===== */
.btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  height: var(--btn-h);
  padding: 0 var(--space-24);
  border-radius: var(--btn-radius);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}
.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 6px 22px rgba(79, 107, 255, 0.32);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(79, 107, 255, 0.45), 0 0 24px rgba(110, 124, 255, 0.25);
}
.btn-outline {
  background: #fff;
  color: var(--ink);
  border-color: rgba(5, 8, 22, 0.12);
}
.btn-outline:hover {
  transform: translateY(-2px);
  border-color: rgba(79, 107, 255, 0.5);
  color: var(--primary);
  box-shadow: 0 10px 30px rgba(79, 107, 255, 0.14);
}
.btn-glass {
  background: rgba(255, 255, 255, 0.1);
  color: var(--on-dark);
  border-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.btn-glass:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.36);
  box-shadow: 0 0 28px rgba(110, 124, 255, 0.3), 0 12px 32px rgba(0, 0, 0, 0.3);
}
.btn-ghost {
  background: transparent;
  color: var(--on-dark-muted);
  border-color: transparent;
}
.btn-ghost:hover { color: var(--on-dark); }

/* Ripple (injected by motion.js) */
.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  transform: scale(0);
  animation: ripple 0.5s ease-out forwards;
  pointer-events: none;
}
@keyframes ripple { to { transform: scale(3); opacity: 0; } }

/* ===== Cards ===== */
.card {
  background: var(--card);
  border: var(--border-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}
.card-hover:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(79, 107, 255, 0.3);
  box-shadow: var(--shadow-lift), 0 0 0 1px rgba(79, 107, 255, 0.08);
}
.glass-card {
  background: var(--glass-bg);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-card);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}
.glass-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(79, 107, 255, 0.35);
  box-shadow: var(--shadow-lift);
}

/* Demo badge */
.demo-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #8a6d1a;
  background: #fdf6e3;
  border: 1px solid #f0e2b6;
}

/* ===== Reveal animations (driven by motion.js) ===== */
[data-reveal] { opacity: 0; }
.no-js [data-reveal] { opacity: 1; }

/* ===== Footer ===== */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--line);
  padding: var(--space-64) 0 var(--space-32);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-48);
  margin-bottom: var(--space-48);
}
.footer-brand p {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--muted);
  max-width: 300px;
  line-height: 1.7;
}
.footer-col h4 {
  margin: 0 0 var(--space-16);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.footer-col a {
  display: block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--muted);
  transition: color 0.2s ease;
}
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  padding-top: var(--space-24);
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-12) var(--space-16);
  font-size: 13px;
  color: var(--muted-2);
}
.beian-link {
  color: var(--muted-2);
  text-decoration: none;
  font-size: 13px;
  transition: color 0.2s ease;
}
.beian-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* ===== Floating message / modal ===== */
.msg-fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, #4F6BFF 0%, #7c5cff 100%);
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 12px 32px rgba(79, 107, 255, 0.4);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.msg-fab:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(79, 107, 255, 0.5);
}
.msg-fab span { letter-spacing: 0.02em; }
.msg-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  display: grid;
  place-items: center;
  padding: 20px;
}
.msg-backdrop.hidden { display: none !important; }
body.msg-modal-open { overflow: hidden; }
.msg-modal {
  position: relative;
  width: min(520px, 100%);
  max-height: min(90vh, 720px);
  overflow: auto;
  background: #fff;
  border-radius: 20px;
  padding: 28px 26px 24px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.25);
  animation: msgRise 0.28s ease;
}
.msg-modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 10px;
  background: #f1f5f9;
  color: #64748b;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
}
.msg-modal-close:hover { background: #e2e8f0; color: #0f172a; }
.msg-modal-head { margin-bottom: 18px; padding-right: 28px; }
.msg-modal-eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #4F6BFF;
  text-transform: uppercase;
}
.msg-modal-head h2 {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #0f172a;
}
.msg-modal-head p {
  margin: 0;
  font-size: 13px;
  color: #64748b;
}

.msg-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.msg-form-span2 { grid-column: 1 / -1; }
.msg-form label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: #334155;
}
.msg-form label span { display: block; margin-bottom: 5px; }
.msg-form input,
.msg-form textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  font: inherit;
  font-size: 14px;
  background: #f8fafc;
  color: #0f172a;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.msg-form input:focus,
.msg-form textarea:focus {
  outline: none;
  border-color: #93c5fd;
  box-shadow: 0 0 0 3px rgba(79, 107, 255, 0.15);
  background: #fff;
}
.msg-form-full { margin-bottom: 14px; }
.msg-form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.msg-submit {
  padding: 12px 22px;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, #4F6BFF, #615ced);
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: filter 0.15s, transform 0.15s;
}
.msg-submit:hover { filter: brightness(1.05); transform: translateY(-1px); }
.msg-submit:disabled { opacity: 0.65; cursor: wait; transform: none; }
.msg-hint {
  margin: 0;
  font-size: 12px;
  color: #94a3b8;
  flex: 1;
  min-width: 160px;
}
.msg-form-status {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 650;
  min-height: 1.2em;
}
.msg-form-status.is-ok { color: #059669; }
.msg-form-status.is-err { color: #dc2626; }

@keyframes msgRise {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 560px) {
  .msg-form-grid { grid-template-columns: 1fr; }
  .msg-fab { right: 14px; bottom: 14px; padding: 12px 14px; }
  .msg-fab span { display: none; }
  .msg-modal { padding: 22px 18px 18px; border-radius: 16px; }
}

/* ===== Visual kit: platform / media / feature icons ===== */
.plat-logo {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  flex-shrink: 0;
  display: block;
  object-fit: cover;
}
.plat-logo--lg {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}
.plat-logo--sm {
  width: 18px;
  height: 18px;
  border-radius: 5px;
}
.plat-logo-row {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.plat-logo-row img { display: block; }

.media-mark {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  flex-shrink: 0;
  display: block;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.media-card:hover .media-mark,
.pick-card:hover .media-mark { transform: scale(1.08); }
.media-mark--sm {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.feat-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  border: 2px solid rgba(79, 107, 255, 0.25);
  color: var(--primary);
  flex-shrink: 0;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease, transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.feat-icon img,
.feat-icon svg {
  width: 24px;
  height: 24px;
  display: block;
}
.feat-icon--sq {
  border-radius: 16px;
  border-width: 1px;
  border-color: var(--line);
  box-shadow: var(--shadow-card);
}
.feat-icon--on-dark {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.platform-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: var(--space-32);
}
.platform-strip-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--on-dark-muted);
  letter-spacing: 0.02em;
}
.platform-strip-logos {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.platform-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
}
.platform-chip img {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  display: block;
}

.doc-thumb {
  height: 88px;
  border-radius: 14px;
  margin: calc(-1 * var(--space-8)) calc(-1 * var(--space-8)) 4px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 12px 14px;
  background:
    radial-gradient(ellipse 80% 90% at 90% 10%, rgba(255, 255, 255, 0.18), transparent 50%),
    linear-gradient(135deg, var(--thumb-a, #4F6BFF), var(--thumb-b, #8B7BFF));
  color: #fff;
  position: relative;
  overflow: hidden;
}
.doc-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(5, 8, 22, 0.2));
  pointer-events: none;
}
.doc-thumb-ic {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.28);
  display: grid;
  place-items: center;
  position: relative;
  z-index: 1;
  backdrop-filter: blur(8px);
}
.doc-thumb-ic img,
.doc-thumb-ic svg {
  width: 18px;
  height: 18px;
  filter: brightness(0) invert(1);
}
.doc-thumb-num {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

.page-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-48);
  align-items: center;
}
.page-hero-visual {
  position: relative;
  display: grid;
  place-items: center;
}
.page-hero-visual img {
  width: 100%;
  max-width: 420px;
  height: auto;
  filter: drop-shadow(0 28px 60px rgba(0, 0, 0, 0.4));
  animation: heroFloat 5s ease-in-out infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@media (max-width: 900px) {
  .page-hero-grid { grid-template-columns: 1fr; }
  .page-hero-visual { display: none; }
}

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .nav-links { display: none; }
  .nav-menu { display: block; }
  .nav-actions .nav-login { display: none; }
}

@media (max-width: 1024px) {
  :root { --section-y: 96px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  :root { --section-y: 72px; }
  .nav-actions { gap: 8px; }
  .nav-actions .btn-primary { display: none; }
  .lang-switch-btn { height: 34px; padding: 0 10px; font-size: 12px; }
  .col-4, .col-5, .col-6, .col-7, .col-8 { grid-column: span 12; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-32); }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}